General
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Target
Go.exe
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Size
2.2MB
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Sample
240201-pxhx9sfegl
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MD5
dcf8c8ef55fd294027997128de155b9f
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SHA1
a7ca95740760a4bb57ef61814ec1579568fbffa2
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SHA256
236c90cde83b3dc403c3c186193b0d2cd14b067f6b4c840d5f0baee57840eba9
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SHA512
81a9c914c4ce6da21231d1d6cdab1a720935f3e20eef16136ff07293c9edfc4ed7e9ad3b909ed4ff88dd437ae8afeb12c0f3b81712b41486c18f695d0e7e033f
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SSDEEP
49152:V2JQb0rvdEeF5XsHuCmDKTkB7a1GwvvnE0jVBTs6vUaB:5wHH0kUHZjA6v/B
Static task
static1
Behavioral task
behavioral1
Sample
Go.exe
Resource
win11-20231215-en
Malware Config
Extracted
risepro
193.233.132.62:50500
193.233.132.67:50500
Extracted
smokeloader
pub3
Targets
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Target
Go.exe
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Size
2.2MB
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MD5
dcf8c8ef55fd294027997128de155b9f
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SHA1
a7ca95740760a4bb57ef61814ec1579568fbffa2
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SHA256
236c90cde83b3dc403c3c186193b0d2cd14b067f6b4c840d5f0baee57840eba9
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SHA512
81a9c914c4ce6da21231d1d6cdab1a720935f3e20eef16136ff07293c9edfc4ed7e9ad3b909ed4ff88dd437ae8afeb12c0f3b81712b41486c18f695d0e7e033f
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SSDEEP
49152:V2JQb0rvdEeF5XsHuCmDKTkB7a1GwvvnE0jVBTs6vUaB:5wHH0kUHZjA6v/B
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Detect Fabookie payload
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Detect ZGRat V1
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Detected Djvu ransomware
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Blocklisted process makes network request
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Creates new service(s)
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Stops running service(s)
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.NET Reactor proctector
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Drops startup file
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Modifies file permissions
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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Accesses Microsoft Outlook profiles
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Adds Run key to start application
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Downloads MZ/PE file
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Modifies Windows Firewall
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
3Windows Service
3Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Create or Modify System Process
3Windows Service
3Scheduled Task/Job
1Defense Evasion
File and Directory Permissions Modification
1Impair Defenses
2Disable or Modify System Firewall
1Modify Registry
2Pre-OS Boot
1Bootkit
1Virtualization/Sandbox Evasion
2